摘要
分析了大型同步发电机励磁用的整流变压器的谐波含量 ,推导了一种在整流变压器绕组中各层线圈采用不同尺寸的并绕导线情况下 ,考虑涡流去磁作用的绕组涡流损耗的计算方法。文中还对谐波损耗计算的截断误差进行了理论分析 ,确定了谐波损耗所需计算的最少谐波次数。
The harmonic current components of an exciting transformer used to excitation in the large synchronous generator is analysed, and a method to calculate the eddy current loss in the winding is deduced in the paper, such case as the eddy current demagnetization being considered and the radial dimension of the conductor in the different layers being different could be dealt with. The truncation error in calculating the harmonic loss is analysed and a method is offered to determine how many times harmonics must be calculated at least.
出处
《变压器》
北大核心
2000年第6期6-10,共5页
Transformer
关键词
大型同步发电机
励磁系统
整流变压器
绕组
损耗
Exciting transformer
Harmonic analysis
Eddy current loss
Truncation error, Computer analysis
